多人同时对话的VC++聊天程序，含服务器和用户端，服务器端启动后需手动进入监听状态，然后启动客户端，先指定IP然后进行连接，连接成功会有提示-Dialogue over the same time VC++ chat program, including server and client, the server starts listening state to be entered manually, and then start the client first and then spec